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Mirrors > Home > MPE Home > Th. List > fveqeq2d | Structured version Visualization version GIF version |
Description: Equality deduction for function value. (Contributed by BJ, 30-Aug-2022.) |
Ref | Expression |
---|---|
fveqeq2d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
Ref | Expression |
---|---|
fveqeq2d | ⊢ (𝜑 → ((𝐹‘𝐴) = 𝐶 ↔ (𝐹‘𝐵) = 𝐶)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fveqeq2d.1 | . . 3 ⊢ (𝜑 → 𝐴 = 𝐵) | |
2 | 1 | fveq2d 6674 | . 2 ⊢ (𝜑 → (𝐹‘𝐴) = (𝐹‘𝐵)) |
3 | 2 | eqeq1d 2823 | 1 ⊢ (𝜑 → ((𝐹‘𝐴) = 𝐶 ↔ (𝐹‘𝐵) = 𝐶)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 = wceq 1537 ‘cfv 6355 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-rab 3147 df-v 3496 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-br 5067 df-iota 6314 df-fv 6363 |
This theorem is referenced by: fveqeq2 6679 op1stg 7701 op2ndg 7702 fpwwecbv 10066 fpwwelem 10067 fseq1m1p1 12983 ico01fl0 13190 divfl0 13195 hashssdif 13774 cshw1 14184 smumullem 15841 algcvga 15923 vdwlem6 16322 vdwlem8 16324 ramub1lem1 16362 resmhm 17985 isghm 18358 fislw 18750 pgpfaclem2 19204 abvfval 19589 abvpropd 19613 lspsneq0 19784 reslmhm 19824 lspsneq 19894 mdetunilem7 21227 imasdsf1olem 22983 bcth 23932 ovoliunnul 24108 lognegb 25173 vmaval 25690 2lgslem3c 25974 2lgslem3d 25975 rusgrnumwrdl2 27368 wlkiswwlks2 27653 rusgrnumwwlks 27753 clwlkclwwlklem1 27777 clwlkclwwlklem2 27778 numclwwlk1 28140 wlkl0 28146 numclwlk1lem1 28148 isnvlem 28387 lnoval 28529 normsub0 28913 elunop2 29790 ishst 29991 hstri 30042 aciunf1lem 30407 lmatfval 31079 lmatcl 31081 voliune 31488 volfiniune 31489 snmlval 32578 voliunnfl 34951 sdclem1 35033 islshp 36130 lshpnel2N 36136 lshpset2N 36270 dicffval 38325 dicfval 38326 mapdhval 38875 hdmap1fval 38947 hdmap1vallem 38948 hdmap1val 38949 diophin 39418 eldioph4b 39457 eldioph4i 39458 diophren 39459 fperiodmullem 41619 fargshiftfva 43652 paireqne 43722 resmgmhm 44114 0ringdif 44190 |
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